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From: Robert Richter <robert.richter@amd.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>,
	Ingo Molnar <mingo@kernel.org>,
	Stephane Eranian <eranian@google.com>,
	Jiri Olsa <jolsa@redhat.com>, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 4/7] perf/x86-ibs: Add support for IBS pseudo events
Date: Mon, 7 May 2012 16:47:56 +0200	[thread overview]
Message-ID: <20120507144756.GG18810@erda.amd.com> (raw)
In-Reply-To: <1336388454.27020.2.camel@laptop>

On 07.05.12 13:00:54, Peter Zijlstra wrote:
> Who again wasn't decoding anything in perf_event_attr:config* ?

attr:config is one of the ibs control msrs comparable with perfctr's
evntsel msr:

 MSRC001_1030 IBS Fetch Control Register (IbsFetchCtl)
 MSRC001_1033 IBS Execution Control Register (IbsOpCtl)

There are some options (randomisation, cycle/micro-op counting) but
usually it is null since the period is encoded in attr:period. But ibs
could be setup by an application using attr:config only which then
passes the value directly to the ctl msr.

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center


  reply	other threads:[~2012-05-07 14:48 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-02 18:26 [PATCH 0/7] perf/x86-ibs and tools: Add support for AMD IBS Robert Richter
2012-05-02 18:26 ` [PATCH 1/7] perf tools: Fix generation of pmu list Robert Richter
2012-05-02 18:26 ` [PATCH 2/7] perf tools: Add basic dynamic PMU support Robert Richter
2012-05-02 18:26 ` [PATCH 3/7] perf tools: Add parser for dynamic PMU events Robert Richter
2012-05-07 11:01   ` Peter Zijlstra
2012-05-07 17:05     ` Robert Richter
2012-05-07 17:10       ` Peter Zijlstra
2012-05-02 18:26 ` [PATCH 4/7] perf/x86-ibs: Add support for IBS pseudo events Robert Richter
2012-05-07 11:00   ` Peter Zijlstra
2012-05-07 14:47     ` Robert Richter [this message]
2012-05-07 15:15       ` Peter Zijlstra
2012-05-07 16:03         ` Robert Richter
2012-05-07 12:08   ` Peter Zijlstra
2012-05-07 13:03   ` Peter Zijlstra
2012-05-07 15:44     ` Robert Richter
2012-05-07 15:51       ` Peter Zijlstra
2012-05-07 15:58         ` Robert Richter
2012-05-07 15:21   ` Stephane Eranian
2012-05-07 15:29     ` Peter Zijlstra
2012-05-07 15:52       ` Robert Richter
2012-05-02 18:26 ` [PATCH 5/7] perf, tools: Add raw event support for dynamic allocated pmus Robert Richter
2012-05-07 13:05   ` Peter Zijlstra
2012-05-07 14:20     ` Peter Zijlstra
2012-05-02 18:26 ` [PATCH 6/7] perf tools: Add pmu mappings to header information Robert Richter
2012-05-02 18:26 ` [PATCH 7/7] perf script: Add script to collect and display IBS samples Robert Richter
2012-05-31 15:24 ` [PATCH 0/7] perf/x86-ibs and tools: Add support for AMD IBS Stephane Eranian
2012-05-31 15:51   ` Robert Richter

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